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transparent}.btn-text:hover{background:var(--color-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-text:active{transform:translateY(0);box-shadow:var(--shadow-sm)}.btn-secondary{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-md) var(--spacing-xl);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-bg-primary);color:var(--color-text-primary);font-family:var(--font-family-primary);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);line-height:1.5;cursor:pointer;text-decoration:none;transition:all var(--transition-base);box-shadow:none}.btn-secondary:hover{border-color:var(--color-primary);color:var(--color-primary);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.btn-minimal{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-md) var(--spacing-lg);border:1px solid 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var(--transition-base);box-shadow:none}.btn-link:hover,.btn-source:hover{border-color:var(--color-primary);color:var(--color-primary);background:var(--color-primary-light)}@keyframes gentle-float{0%,to{transform:translateY(0)}50%{transform:translateY(var(--float-offset))}}@keyframes pulse-glow{0%,to{box-shadow:var(--shadow-sm);transform:scale(1)}50%{box-shadow:var(--shadow-glow);transform:scale(var(--scale-hover))}}@keyframes slide-in-up{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes slide-in-down{0%{transform:translateY(-10px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes fade-in-scale{0%{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}@keyframes skeleton-loading{0%{background-position:-200px 0}to{background-position:calc(200px + 100%) 0}}@keyframes skeleton-pulse{0%,to{opacity:.6}50%{opacity:1}}.skeleton{background:linear-gradient(90deg,var(--color-bg-secondary) 0%,var(--color-bg-tertiary) 50%,var(--color-bg-secondary) 100%);background-size:200px 100%;animation:skeleton-loading 1.2s ease-in-out infinite;border-radius:var(--radius-sm)}[data-theme=dark] .skeleton{background:linear-gradient(90deg,#334155 0%,#475569 50%,#334155 100%);background-size:200px 100%}.skeleton-card{background:var(--color-bg-primary);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--spacing-xl);margin-bottom:var(--spacing-xl);animation:skeleton-pulse 1.5s ease-in-out infinite}.skeleton-image{width:100%;height:220px;margin-bottom:var(--spacing-lg);border-radius:var(--radius-lg)}.skeleton-title{height:24px;width:85%;margin-bottom:var(--spacing-md)}.skeleton-text{height:16px;width:100%;margin-bottom:var(--spacing-sm)}.skeleton-text.short{width:70%}.skeleton-text.medium{width:85%}.skeleton-meta{display:flex;gap:var(--spacing-sm);margin-bottom:var(--spacing-lg)}.skeleton-tag{height:20px;width:60px;border-radius:var(--radius-sm)}.skeleton-button{height:36px;width:100px;border-radius:var(--radius-lg);margin-top:var(--spacing-lg)}@media screen and (max-width: 768px){.skeleton-image{height:160px}.skeleton-title{height:20px}.skeleton-text{height:14px}}.lazy{transition:opacity .3s ease-in-out;opacity:.6;filter:blur(2px)}.lazy.loaded{opacity:1;filter:blur(0)}.lazy.loading{opacity:.8}.card-image{position:relative;overflow:hidden}.card-image img{transition:filter .3s ease,opacity .3s ease}.card-image:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:var(--color-bg-secondary);background-image:linear-gradient(45deg,transparent 25%,rgba(255,255,255,.1) 25%,rgba(255,255,255,.1) 50%,transparent 50%,transparent 75%,rgba(255,255,255,.1) 75%);background-size:20px 20px;animation:loading-pattern 1s linear infinite;z-index:1;pointer-events:none;opacity:0;transition:opacity .3s ease}.card-image img.lazy:before{opacity:1}@keyframes loading-pattern{0%{background-position:0 0}to{background-position:20px 20px}}.btn-text,.btn-secondary,.btn-minimal,.btn-link,.btn-source{position:relative;overflow:hidden}.btn-text:after,.btn-secondary:after,.btn-minimal:after{content:"";position:absolute;top:50%;left:50%;width:0;height:0;background:rgba(255,255,255,.1);border-radius:50%;transform:translate(-50%,-50%);transition:all var(--transition-fast)}.btn-text:active:after,.btn-secondary:active:after,.btn-minimal:active:after{width:120%;height:120%;transition:all .1s ease-out}.card,.article-card,.stat-card,.filter-btn{backface-visibility:hidden;perspective:1000px}.article-card{will-change:transform,box-shadow}.article-card:hover{transform:translateY(-6px) scale(var(--scale-hover));transition:all var(--transition-elastic)}.article-card:active{transform:translateY(-2px) scale(var(--scale-active));transition:all var(--transition-fast)}.btn-sm{padding:var(--spacing-sm) var(--spacing-md);font-size:var(--font-size-xs);border-radius:var(--radius-md)}.btn-lg{padding:var(--spacing-lg) var(--spacing-2xl);font-size:var(--font-size-lg);border-radius:var(--radius-xl)}.btn-xl{padding:var(--spacing-xl) var(--spacing-3xl);font-size:var(--font-size-xl);border-radius:var(--radius-2xl)}.glass{background:rgba(255,255,255,.7);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.2);box-shadow:0 8px 32px #1f26875e}[data-theme=dark] .glass{background:rgba(30,41,59,.7);border:1px solid rgba(255,255,255,.1);box-shadow:0 8px 32px #0000004d}.glass-light{background:rgba(255,255,255,.9);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.3)}[data-theme=dark] .glass-light{background:rgba(30,41,59,.9);border:1px solid rgba(255,255,255,.2)}.glass-heavy{background:rgba(255,255,255,.5);backdrop-filter:blur(30px);-webkit-backdrop-filter:blur(30px);border:1px solid rgba(255,255,255,.1);box-shadow:0 8px 32px #1f26875e}[data-theme=dark] .glass-heavy{background:rgba(15,23,42,.8);border:1px solid rgba(255,255,255,.05)}.btn-text:disabled,.btn-secondary:disabled,.btn-accent:disabled,.btn-minimal:disabled{opacity:.5;cursor:not-allowed;transform:none!important;box-shadow:var(--shadow-sm)!important;pointer-events:none}.btn-icon{display:inline-flex;align-items:center;gap:var(--spacing-sm)}.btn-icon svg,.btn-icon img{width:1rem;height:1rem;transition:transform var(--transition-base)}.btn-icon:hover svg,.btn-icon:hover img{transform:scale(1.1)}*{margin:0;padding:0;box-sizing:border-box}*:before,*:after{box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%}body{margin:0;padding:0;background:var(--color-bg-page);color:var(--color-text-primary);font-family:var(--font-family-primary);font-size:var(--font-size-base);font-weight:var(--font-weight-normal);line-height:1.6;transition:background-color var(--transition-base);min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{width:100%;min-height:100vh;background:var(--color-bg-page);position:relative}.card{background:var(--color-bg-primary);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);transition:all var(--transition-base);overflow:hidden}.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:var(--color-primary)}.card-glass{background:var(--color-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.2)}h1,h2,h3,h4,h5,h6{font-family:var(--font-family-display);font-weight:var(--font-weight-bold);line-height:1.2;margin-bottom:var(--spacing-lg);color:var(--color-text-primary)}h1{font-size:var(--font-size-5xl)}h2{font-size:var(--font-size-4xl)}h3{font-size:var(--font-size-3xl)}h4{font-size:var(--font-size-2xl)}h5{font-size:var(--font-size-xl)}h6{font-size:var(--font-size-lg)}p{margin-bottom:var(--spacing-lg);line-height:1.7}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-base)}a:hover{color:var(--color-primary-hover);text-decoration:underline}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--color-bg-secondary)}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full);border:2px solid var(--color-bg-secondary)}::-webkit-scrollbar-thumb:hover{background:var(--color-primary)}@media screen and (max-width: 768px){html{font-size:14px}body{overflow-x:hidden;width:100%}#app{width:100%;overflow-x:hidden}h1{font-size:var(--font-size-3xl)}h2{font-size:var(--font-size-2xl)}h3{font-size:var(--font-size-xl)}h4{font-size:var(--font-size-lg)}h5{font-size:var(--font-size-base)}h6{font-size:var(--font-size-sm)}.btn{padding:var(--spacing-sm) var(--spacing-lg);font-size:var(--font-size-sm)}.card{border-radius:var(--radius-lg)}}@media screen and (max-width: 480px){.btn-lg{padding:var(--spacing-md) var(--spacing-xl);font-size:var(--font-size-base)}.btn-xl{padding:var(--spacing-lg) var(--spacing-2xl);font-size:var(--font-size-lg)}}